diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
index 4a42a74..ad5e5d1 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
@@ -39,7 +39,7 @@
 
     @Override
     public int hashCode() {
-        return 43 * super.hashCode() + Objects.hash(connectPoint);
+        return 43 * super.hashCode() + connectPoint.hashCode();
     }
 
     @Override
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/OpticalLogicId.java b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/OpticalLogicId.java
index 90f5eab..d599486 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/OpticalLogicId.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/tunnel/OpticalLogicId.java
@@ -63,7 +63,7 @@
 
         @Override
         public int hashCode() {
-            return Objects.hash(logicId);
+            return Objects.hashCode(logicId);
         }
 
         @Override
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/DefaultVirtualDevice.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/DefaultVirtualDevice.java
index 54a22a4..e3339a9 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/DefaultVirtualDevice.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/DefaultVirtualDevice.java
@@ -53,7 +53,7 @@
 
     @Override
     public int hashCode() {
-        return 31 * super.hashCode() + Objects.hash(networkId);
+        return 31 * super.hashCode() + networkId.hashCode();
     }
 
     @Override
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/TenantId.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/TenantId.java
index a00f880..196c17d 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/TenantId.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/TenantId.java
@@ -59,7 +59,7 @@
 
     @Override
     public int hashCode() {
-        return Objects.hash(id);
+        return id.hashCode();
     }
 
     @Override